Perforating-machine.



T; A. McCALL. PERFORMING MACKINE.

APPLICATION FILED MAR. B, 1912.

1,048,560; Patented Dec.31,1912.

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| annual: luau T. A. MoGALL. PERFORATING MACHINE.

APPLICATION FILED MAE. 8, 1912. 1,048,560. Patented Dec.31, 1912.

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THOMAS A. MCCALL, OF CINCINNATI, OHIO, ASSIGNOR TO THE NATIONALAUTOMATIC TYIPEWRITER COMPANY, OF CINCINNATI, OHIO, A CORPORATION OFOHIO. I

' PERFORATING-MACHINE.

Specification of Letters Patent.

To all whom it may concern:

Be it known that I, THOMAS A.- MCCALL, a cltizen of the United States,residing at Cincinnati, in the county of Hamilton and I the like.

The invention consists in the construction and combinations of partshereinafter de scribed, and pointed out definitely in the claims. 1

In the drawings, Figure 1 is a side elevation of a machine embodying theinvention. Fig. 2 is a plan view thereof. Fig. 3 is a transversesectional view in'thc plane indicated by line 33 on Fig. 2; and Fig.

4: is a sectional View of one of the punches and the parts associatedtherewith.

A represents a roll on which is wound the paper strip ,to be perforated,which roll is hung loosely in bracket arms 7) fixed to the frame membersB of the machine.

C represents a roll on which the perforated paper strip S is finallywound. which roll is hung in other fixed brackets Z). The spindle c ofthis latter. roll has a pulley a, over which the belt F runs. This beltruns also over a pulley d fixed to a driving shaft D, which extendstransversely and is meant ed in bearings in the two side members of theframe. The belt is suiliciently loose to enable it to slip, ifnecessary, but sutliciently tight to enable it to turn the receivingroll (3 as much as is necessary to take up the slack of the paper.

A horizontal cross bar 1*] extends between and is fixed to the sideframe members. Near its ends, hardened die plates G are 1Tlset into, itsupper surface, which die plates have holes 9 registering with holes 0below them in the bar E. Punch guide blocks H- are fixed to the sideframe members, and each of these has two vertical guide holes in whichthe reciprocating punch bars K, K

and K, K are guided for vertical movement. The punches L- on the lowerends of vertically movable horizontal bar J which extends transverselyacross the machine, its ends being connected with the upper ends of thetwo slides M, M, which are mounted for vertical endwise movement. inguidcways fixed to the side frame members. 011 the shaft D and atopposite ends thereof are the two eccentrics N; N, whose eccentricstraps 71,02, are pivotally connected with the lower ends of the bars M.\Vhen the shaft D is rotated, the four punches will, through thedescribed mechanism, be moved up and down, said punches 7.: descendingfar enough to punch holes in the paper strip'which runs across the barE. Below the holes e,'e, chutes 1 ,are fixed to receive the paper diskspunched from the paper, and to carry them to a scrap receiver.

The paper strip S passes over the bar E, as stated, and its edges passlikewise beneath the lower ends of the punch guides H, which lower endsare placed pretty close to the bar 1'), so that the paper is prevented-from buckling or crinkling at the points where the perforations aretobc made. To keep the paper straight, however, entirely across the barwhile the perforations are being made. four resilient pressure bars R,R, R, .R are employed, the two pressure bars R, R, at the left sidebeing curved to the left, and the two pressure bars R, R, near the leftside being curved to the left. These four bars are fixed to thereciprocating bar J. Each of these pressure bars consists t'reierahlyoff a flat spring 7 over which a rubber sheath .r is drawn. \Vhen thebar J descends, these spring pressure bars will strike the paper at themerest instant before the punches strike it, and will press it downPatented Dec. 31, 1911.2, Application filed March 8, 1912. Serial No.682,499.

.thebar E.

so that when the punches descend this paper I W1ll be entirely flat.

Two .levers T are'pivot'ed to the side of the frame, and a roller 25 ismounted in their outer ends, which roller rests on top of .the

This roller has also. two collars t t, which,

by engaging the edges ofthe paper, help to guide it, and to .keeptherollofpaper in the proper position. I

' Two' levers U are respectively pivoted to the frame which is composedof the two levers T, and.roller t, and hang at an angle downwardlytherefrom, and a roller u" is mounted their ends. This roller-rests uponthe paper strip and automatically takes up any slack therein, andholdsit taut. tion of fixed perforated 'dieplates, punch 'guides'locatedabove them, 'punch bars vertically' movable in said-punch guides, across 7 bar connected with said punch bars, two ver-- After leaving theroller a, the paper strip passes over a guide roller'w and thence overThe feed mechanism consists of-arolLQ, whose spindle is mounted in theside frame members. This roll has near each end two circumferential rowsof radially projecting driving spurs q. The ratchet g is fixed to oneendfof. this feed roll spindlew A bell crank lever is pivoted to one ofthe side frame members, and it carries apawl 'v for engagement with thisratchet,--a spring '0 acting to preserve this engagement. In thehorizontal arm of this bell crank lever is a slot which embraces a pin mfixed to one of-the vertical movable bars M. 'Every time this bar movesup, it rocks this bell crank lever, and this lever, through pawl '21,acting on ratchetg, turns the feed roll through a definite arc. A springyengaging with this ratchet acts as a brake to prevent the feed rollfrom turning too far, and also acts asa dog to prevent it from turningbackward while .thepawl'is moving backward.-

A curved plate Z is fixed to the side frame members adjacent'to the feedroll and pre- -vents thev paperstrip from becoming disengaged fromthe-saidfeed roll.

The drawing shows by dotted lines in Fig;

1 an electric motor, and in Fig.2, together with the dotted lines inFig. .1, is shown a train of mechanism for transmitting motion from thismotor to the driving shaft.

Having thus described my invention, .I claim 1. In a perforatingmachine, the: co-mbina tion .of fixed perforated die plates, punchguides located" above them, punch bars vertically movable in said punchguides, a cross bar connected with said punch bars, two verticallymovable bars connected at their upper ends'with said cross bar, arotating shaft,

means carried\thereby for moving the vertically movable bars up anddown, a feed roll having feeding. spurs, and mechanism operated by saidvertically movable bars operating them, a-feed roll having feedingspurs, means for turning said feed i ll peri- 2. .In a perforatingmachine, the coinbination" of fixed perforated-die plates, punchguideslocated above them, punch- -bar's vertically movable in saidpunchguides, a cross ar connected withsaid punch bars,it;wo verticallymovable bars connected at tlfeirp'pper means carried thereby for movingthe verends with said-cross bar, a rotating shaft, 1

roll-having feeding 3-'spurs,- and having .a

ratchet secured to it, a bell crank-lever pivoted to a' fixture, aspringpawlcarried there:

by for engaging said ratchet, said lever :having a slotandone of saidverticallyrecipro opting bars having apin projecting intosaid s I 3. Inaperforatingmachine, the combinati'cally movable barsconnecte'd at theirupper ends with said crossbar, a rotating shaft, meanscarried therebyfor moving the vertically movable bars up' and down, a feed roll havingfeeding spurs, and having a ratchet secured to it, a bell crank leverpivoted-to a fixture, a spring pawl carried thereby for engaging saidratchet, said lever havmg a slot, and one of said verticallymaproca-tlng bars having a pm pr0 ect1ng nto said slot, and a spring dogengaging said ratchet.

4;. In a perforating machine, the combina-.

tion. of a fixed perforateddie plate, a cross bar in which said dieplates are secured, vertically reciprocating punches, mechanism for,

odically through a definite distance, a freely rotatable paper roll, aframe carrying a roller which rests'upon said paper roll, and a secondframe pivoted to the first and conveyinga' roller which rests on thepapercross bar a 5.. In a perforating machine, the combination of afixed perforated die plate, a cross bar in which said die plates aresecured, vertically reciprocating punches, mechanism for operating them,a feed roll having feeding spurs,- means for turning said feed rollperiodically through a definite distance, a

tically reciprocating punch bars, a cross bar extending between andconnected with said punch bars, means for reciprocatingrsaid downwardand tovard the adjacent side of cross bar, and a spring pressure fingerfixed the machine. 10 to said cross bar near one endthereof and Intestimony whereof, I hereunto afl'ix my extending therefrom downward andtoward signature in the presence of two witnesses. the correspondingside of the machine, and 'lHOhIIAS A. MCCALL. another spring pressurefinger fixed to said itnesses:

cross bar near the opposite side of the 1na- Sumner Assun,

chine and extending from the cross bar HELEN X. RUPIE'R'I.

